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Meadow Knapweed Working Group
The Meadow Knapweed Working Group is a multi-agency, multi-disciplinary team whose goals are to,
1. share and communicate all available information on the biology and control of meadow knapweed, and
2. cooperate in control efforts in order to maximize success and efficiency.
If you would like more information or would like to be a part of this group, contact Andrea.
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Meadow knapweed (Centaurea x pratensis Thuill; Asteraceae) is a fertile hybrid between two European species that are also invasive in the United States, black knapweed (C. nigra) and brown knapweed (C. jaceae). Meadow knapweed is found throughout western Oregon and Washington; it has also been found in eastern Oregon and Washington and northwest Idaho. Populations of meadow knapweed have been rapidly expanding and new infestations are frequently found. Although meadow knapweed appears to first colonize roadsides, river and stream banks, and disturbed pastures, it is also capable of invading native prairies and meadows. |
